[
https://issues.apache.org/jira/browse/KARAF-6790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jean-Baptiste Onofré resolved KARAF-6790.
-----------------------------------------
Resolution: Duplicate
> Filter attribute in @Reference is not honored.
> ----------------------------------------------
>
> Key: KARAF-6790
> URL: https://issues.apache.org/jira/browse/KARAF-6790
> Project: Karaf
> Issue Type: New Feature
> Components: karaf
> Affects Versions: 4.2.0
> Environment: Karaf version 4.2.9
> Karaf home
> /Users/paul/Documents/apms-ewm/git_intekon/apache-karaf-4.2.9
> Karaf base
> /Users/paul/Documents/apms-ewm/git_intekon/apache-karaf-4.2.9
> OSGi Framework org.apache.felix.framework-5.6.12
> Java Virtual Machine Java HotSpot(TM) 64-Bit Server VM version 25.172-b11
> Version 1.8.0_172
> Vendor Oracle Corporation
> Name Mac OS X version 10.14.6
> Architecture x86_64
>
>
> Reporter: Paul Spencer
> Assignee: Jean-Baptiste Onofré
> Priority: Major
>
> The filter attribute in the @Reference,
> org.apache.karaf.shell.api.action.lifecycle.Reference, for the @Command does
> not appear the be applied, this the wrong service was returned.
> [Mailing List
> Thread|http://karaf.922171.n3.nabble.com/Question-about-Reference-Karaf-Command-annotation-td4057824.html]
> From command that uses the RedColor service
> The command did not return the correct ColorService.
> {code:java}
> import org.apache.karaf.shell.api.action.Action;
> import org.apache.karaf.shell.api.action.Command;
> import org.apache.karaf.shell.api.action.lifecycle.Reference;
> import org.apache.karaf.shell.api.action.lifecycle.Service;
> import com.example.service.ColorService;
> @Service
> @Command(scope = "color", name = "get-red", description = "Get Red Service")
> public class DisplayRedServiceCommand implements Action {
> @Reference(filter = "(color=red)")
> private ColorService colorService;
> {code}
>
> Output from Command that get a RedColor service
> {code:java}
> karaf@root()> color:get-red
> Color = BLUE
> {code}
> Component the defines the RedColor service
> {code:java}
> import org.osgi.service.component.annotations.Activate;
> import org.osgi.service.component.annotations.Component;
> import org.osgi.service.component.annotations.Deactivate;
> import org.osgi.service.component.annotations.Modified;
> import org.slf4j.Logger;
> import org.slf4j.LoggerFactory;
> import com.example.service.ColorService;
> @Component(immediate = true, property = "color=red")
> public class RedColorService implements ColorService {
> private final Logger log = LoggerFactory.getLogger(getClass());
> {code}
>
> Component that uses the RedColor Service
> {code:java}
> import org.osgi.service.component.annotations.Activate;
> import org.osgi.service.component.annotations.Component;
> import org.osgi.service.component.annotations.Deactivate;
> import org.osgi.service.component.annotations.Modified;
> import org.osgi.service.component.annotations.Reference;
> import org.slf4j.Logger;
> import org.slf4j.LoggerFactory;
> import com.example.service.ColorService;
> import com.example.service.GenericColorService;
> @Component(immediate = true, property = "color=all")
> public class AllColorService implements GenericColorService {
> private final Logger log = LoggerFactory.getLogger(getClass());
> @Reference(target = "(color=red)")
> private ColorService redColorService;
> @Reference(target = "(color=green)")
> private ColorService greenColorService;
> @Reference(target = "(color=blue)")
> private ColorService blueColorService;
> @Override
> public String getColor() {
> StringBuffer colors = new StringBuffer();
> colors.append(redColorService.getColor());
> colors.append(", ");
> colors.append(greenColorService.getColor());
> colors.append(", ");
> colors.append(blueColorService.getColor());
> return colors.toString();
> }
> {code}
>
> Command that get a two color service
> {code:java}
> import org.apache.karaf.shell.api.action.Action;
> import org.apache.karaf.shell.api.action.Command;
> import org.apache.karaf.shell.api.action.lifecycle.Reference;
> import org.apache.karaf.shell.api.action.lifecycle.Service;
> import com.example.secondService.TwoColorService;
> @Service
> @Command(scope = "yellow", name = "yellow", description = "Get Yellow
> Service")
> public class DisplayYellowServiceCommand implements Action {
> @Reference
> private TwoColorService colorService;
> @Override
> public Object execute() throws Exception {
> System.out.println("Color = " + colorService.getColor());
> return null;
> }
> {code}
> Output from Command that get a two color service
> {code:java}
> karaf@root()> yellow:yellow
> Color = RED, GREEN
> {code}
> Component that produces a two color service
> {code:java}
> import org.osgi.service.component.annotations.Activate;
> import org.osgi.service.component.annotations.Component;
> import org.osgi.service.component.annotations.Deactivate;
> import org.osgi.service.component.annotations.Modified;
> import org.osgi.service.component.annotations.Reference;
> import org.slf4j.Logger;
> import org.slf4j.LoggerFactory;
> import com.example.secondService.TwoColorService;
> import com.example.service.ColorService;
> @Component(immediate = true, property = "2color=yellow")
> public class YellowColorService implements TwoColorService {
> private final Logger log = LoggerFactory.getLogger(getClass());
> @Reference(target = "(color=red)")
> private ColorService redColorService;
> @Reference(target = "(color=green)")
> private ColorService greenColorService;
> @Override
> public String getColor() {
> StringBuffer colors = new StringBuffer();
> colors.append(redColorService.getColor());
> colors.append(", ");
> colors.append(greenColorService.getColor());
> return colors.toString();
> }
> {code}
>
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